Development of a growth inhibition test with the marine and brackish water red alga Ceramium tenuicorne

被引:24
作者
Eklund, B [1 ]
机构
[1] Stockholm Univ, Inst Appl Environm Res, SE-10691 Stockholm, Sweden
关键词
Ceramium tenuicorne; macroalga; marine; estuarine; standardisation; toxicity test;
D O I
10.1016/j.marpolbul.2005.02.005
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
The marine red macroalga Ceramium tenuicorne is cosmopolitan and naturally found in both brackish and marine waters. A growth inhibition test with this species can be carried out in salinities from 4 parts per thousand to 32 parts per thousand. The species is easily held in culture in the laboratory and the test can be performed in a completely defined medium. The robustness of the method is good with a CV of 14.6% of the controls. The EC calculations can be performed on linear regression on the length data. EC50 values of repetitive tests for zinc (20-33 mu g Zn2+/1 in 7 parts per thousand, and 32-61 mu g Zn2+/1 in 20 parts per thousand) and copper (1.9-3.8 Cu2+/1 in 7 parts per thousand and 7.9-13 Cu2+/1 in 20 parts per thousand) show high sensitivity. This test is a good complement to any test battery with the purpose of estimating the hazard of substances to the brackish and marine environment. (c) 2005 Elsevier Ltd. All rights reserved.
引用
收藏
页码:921 / 930
页数:10
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